source: src/libcfa/concurrency/thread.c@ 02d241f

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new with_gc
Last change on this file since 02d241f was 9d944b2, checked in by Thierry Delisle <tdelisle@…>, 8 years ago

Implemented interposing for abort and exit, implemented safer debug output

  • Property mode set to 100644
File size: 2.6 KB
Line 
1// -*- Mode: CFA -*-
2//
3// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
4//
5// The contents of this file are covered under the licence agreement in the
6// file "LICENCE" distributed with Cforall.
7//
8// thread.c --
9//
10// Author : Thierry Delisle
11// Created On : Tue Jan 17 12:27:26 2017
12// Last Modified By : Thierry Delisle
13// Last Modified On : --
14// Update Count : 0
15//
16
17#include "thread"
18
19#include "kernel_private.h"
20#include "libhdr.h"
21
22#define __CFA_INVOKE_PRIVATE__
23#include "invoke.h"
24
25extern "C" {
26 #include <fenv.h>
27 #include <stddef.h>
28}
29
30extern thread_local processor * this_processor;
31
32//-----------------------------------------------------------------------------
33// Thread ctors and dtors
34
35void ?{}(thread_desc* this) {
36 (&this->cor){};
37 this->cor.name = "Anonymous Coroutine";
38 this->mon.owner = this;
39 this->mon.recursion = 1;
40 this->next = NULL;
41}
42
43void ^?{}(thread_desc* this) {
44 ^(&this->cor){};
45}
46
47forall( dtype T | sized(T) | is_thread(T) | { void ?{}(T*); } )
48void ?{}( scoped(T)* this ) {
49 (&this->handle){};
50 __thrd_start(&this->handle);
51}
52
53forall( dtype T, ttype P | sized(T) | is_thread(T) | { void ?{}(T*, P); } )
54void ?{}( scoped(T)* this, P params ) {
55 (&this->handle){ params };
56 __thrd_start(&this->handle);
57}
58
59forall( dtype T | sized(T) | is_thread(T) )
60void ^?{}( scoped(T)* this ) {
61 ^(&this->handle){};
62}
63
64//-----------------------------------------------------------------------------
65// Starting and stopping threads
66forall( dtype T | is_thread(T) )
67void __thrd_start( T* this ) {
68 coroutine_desc* thrd_c = get_coroutine(this);
69 thread_desc* thrd_h = get_thread (this);
70 thrd_c->last = this_coroutine();
71 this_processor->current_coroutine = thrd_c;
72
73 LIB_DEBUG_PRINT_SAFE("Thread start : %p (t %p, c %p)\n", this, thrd_c, thrd_h);
74
75 create_stack(&thrd_c->stack, thrd_c->stack.size);
76 CtxStart(this, CtxInvokeThread);
77 CtxSwitch( thrd_c->last->stack.context, thrd_c->stack.context );
78
79 ScheduleThread(thrd_h);
80}
81
82void yield( void ) {
83 ScheduleInternal( this_processor->current_thread );
84}
85
86void ThreadCtxSwitch(coroutine_desc* src, coroutine_desc* dst) {
87 // set state of current coroutine to inactive
88 src->state = Inactive;
89 dst->state = Active;
90
91 //update the last resumer
92 dst->last = src;
93
94 // set new coroutine that the processor is executing
95 // and context switch to it
96 this_processor->current_coroutine = dst;
97 CtxSwitch( src->stack.context, dst->stack.context );
98 this_processor->current_coroutine = src;
99
100 // set state of new coroutine to active
101 dst->state = Inactive;
102 src->state = Active;
103}
104
105// Local Variables: //
106// mode: c //
107// tab-width: 4 //
108// End: //
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